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coolthenate

Airsoft + Science Fair

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I recently designed an airsoft gun using 3D modeling software and am entering it into the science fair. Here's a link to the video presentation -

. I brought the design to a proffesional machinist and he has offered to produce a few parts in the near future. The last animation in the video lagged a bit, but it gets the point accross. Please comment and give pointers, they are much appreciated as the science fair is on the 19th.

post-67288-1363485142_thumb.jpg post-67288-1363485153_thumb.jpg

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Okay, first off, you did quite a lot of generalizing about Airsoft guns there. Especially AEGs. Tokyo Marui AEGs have a far greater reliability than most brands. Not ALL AEGs use primarily plastic components unless you're just referring to LPEGs and MPEGs. I pretty much stopped the video when you said the inventor of the AK was named 'Avtomat Kalashnikov'. Seriously, this video utilized poor sources of information.

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Ok I agree with Dmitri here. His name was Mikhail Kalashnikov. And the "Koch" from "Heckler and Koch" was pronounced wrong. And you basically made a paintball gun that fires BBs... I think you know more about 3D modeling than you do airsoft.

 

Oh and 3D modeling isn't better than handmade blueprints, CAD software didn't design the Eiffel Tower, or the Statue of Liberty, or the Great Wall of China. But then again, that was a wall.

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Yeah, I'm afraid this was a nice idea but it actually presents little on HOW your gun would particularly out-perform GOOD AEGs, GBBRs, and Classics for that matter. You just basically state that you have less parts (excluding hardware) than most airsoft guns. Uh, which ones? Yeah, AEGs have a lot of parts, but BASRs have fewer and depending on the model and make outclass most stock AEGs in range and accuracy. Also, bore diameter does not affect accuracy or range nearly as much as the hopup does. And finally, you lack any explanation on HOW your gun fires other than a single shot. Is it semi-only? Auto-only? Select-fire? How does the trigger mechanism even work the firing system? This entire PowerPoint just seemed too ill-informed about airsoft as a whole and very vague on explaining how your design was actually better. Making CAD working drawings is one thing, having a working prototype is another thing all together. Also, did the machinist you mentioned give you any estimates on making any of the parts? Unless this guy is EXTREMELY generous or owes you a favor, just making ONE gun is going to be expensive. Prototyping services alone cost hundreds of dollars for an airsoft gun design, and that's still only if you're using Chicom outsourcing services. Stuff made in the USA costs more.

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Ok I agree with Dmitri here. His name was Mikhail Kalashnikov. And the "Koch" from "Heckler and Koch" was pronounced wrong. And you basically made a paintball gun that fires BBs... I think you know more about 3D modeling than you do airsoft.

 

Oh and 3D modeling isn't better than handmade blueprints, CAD software didn't design the Eiffel Tower, or the Statue of Liberty, or the Great Wall of China. But then again, that was a wall.

No, CAD did not build the Iffle tower becuase they did not have computers in 1887. Nearly every proffesional enginner uses CAD in modern times, so your car or your parents car was probably made with CAD. Your local football staduim was likely designed with CAD, and your computer was probably designed with CAD. And could we please forget the "Mikhail Kalashnikov" thing, its of minor significance and is irrelevant to the validity of the quote and my design. P.S. a paintball gun that fires BB's is imposible. It's either an airsoft gun or a paintball gun depending on what it shoots.

Edited by coolthenate

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  • Battery

Wiring

Selector Plate

Trigger Contacts

Trigger Bridge

Trigger

Safety Bar

Semi Auto Disconnect

Motor

Pinion Gear

Bevel Gear

Spur Gear

Sector Gear

6 Bushings/Bearings

Anti-reversal Latch

Tappet Plate

Air Nozzle

Spring

Spring Guide

Piston Body

Piston Head

Cylinder

Cylinder Head

Mechbox

Hop up Unit

Hop rubber

Hop nub

Barrel

 

That was my list for internal parts of the average replica. Twenty-eight parts, but I may be missing some. Your presentation is well enough, however your understanding of content is not. Further, you're reiterating an already well-constructed system (See Daytona Gun, Escort, Asahi, Sun Project, Kokusai, JAC, etcetera). You seem to be basing your entire presentation on your experience with one $200 replica, and while price doesn't always factor into quality, it is fairly widely-regarded that you pay for what you get. Further (and this is an assumption), you did not perform any preventative maintenance as is recommended for any mass produced product. In addition, you've failed to grasp the concept that airsoft is commonly thought of as a military simulation, hence the very realistic designs - I can think of maybe a handful that would purchase your design, at most. Your presumptions are baseless, presenting little to no factual evidence as to inherent construction flaws of the current AEG mechbox design, rather playing on the assumption that you do, in fact, know what you're talking about. All in all, I would be extremely, extremely hesitant to display this at any science fair.

 

I would suggest getting a new microphone, as well.

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  • Battery

Wiring

Selector Plate

Trigger Contacts

Trigger Bridge

Trigger

Safety Bar

Semi Auto Disconnect

Motor

Pinion Gear

Bevel Gear

Spur Gear

Sector Gear

6 Bushings/Bearings

Anti-reversal Latch

Tappet Plate

Air Nozzle

Spring

Spring Guide

Piston Body

Piston Head

Cylinder

Cylinder Head

Mechbox

Hop up Unit

Hop rubber

Hop nub

Barrel

 

That was my list for internal parts of the average replica. Twenty-eight parts, but I may be missing some. Your presentation is well enough, however your understanding of content is not. Further, you're reiterating an already well-constructed system (See Daytona Gun, Escort, Asahi, Sun Project, Kokusai, JAC, etcetera). You seem to be basing your entire presentation on your experience with one $200 replica, and while price doesn't always factor into quality, it is fairly widely-regarded that you pay for what you get. Further (and this is an assumption), you did not perform any preventative maintenance as is recommended for any mass produced product. In addition, you've failed to grasp the concept that airsoft is commonly thought of as a military simulation, hence the very realistic designs - I can think of maybe a handful that would purchase your design, at most. Your presumptions are baseless, presenting little to no factual evidence as to inherent construction flaws of the current AEG mechbox design, rather playing on the assumption that you do, in fact, know what you're talking about. All in all, I would be extremely, extremely hesitant to display this at any science fair.

 

I would suggest getting a new microphone, as well.

Count these - http://kwausa.com/files/5613/1429/4640/CR_...02_G36Cgear.jpg

And that didn't include the gear box here - http://kwausa.com/files/2313/1411/8256/CR_A09V02_G36C.jpg I counted 108 not including nuts and bolts. Was that factual enough?

My live presentation is much more detailed and delves into the math and engineering aspect, that video is realy a brief overview of a much more detalied project.

Edited by coolthenate

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Count these - http://kwausa.com/files/5613/1429/4640/CR_...02_G36Cgear.jpg

And that didn't include the gear box here - http://kwausa.com/files/2313/1411/8256/CR_A09V02_G36C.jpg I counted 108 not including nuts and bolts. Was that factual enough?

My live presentation is much more detailed and delves into the math and engineering aspect, that video is realy a brief overview of a much more detalied project.

 

 

Don't get defensive. If you're counting individual springs, washers, shims, and other such parts that compromise larger parts (IE the spring guide's washers and bearing disc, which are very, very rarely purchased separately, not to mention the very slim chance of them ever breaking), then yes, you're correct. However, I think we can agree that counting the three discs, plastic mount, screw, o-ring, and body of the piston head as seven parts, or the multiple plates that compromise the trigger unit is a bit ridiculous. At this point, you're nitpicking. The chances of any of these parts breaking is extremely low - I've literally never seen a broken tappet spring, or a broken trigger spring. Again, you're nitpicking.

 

If you do in fact have a more in-depth presentation... Given that you took ten minutes to explain an extremely simple concept, I'd be worried about the audience simply getting bored and walking off.

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Vegas, technically the battery isn't part of the gun, so that's one less :a-laugh:

 

I agree though, it was a little long for what it was.

 

This could be something good, you just need to do more research.

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it'd likely be cheaper than normal airsoft guns.

If it were made in China like practically everything else, yeah, sure. USA? 3 pieces of rubber for a hop-up with a fancy name that requires user modification to install costs $12. Drilling a hole on the top of the receiver through the hop with a screw for adjustment (again, with a fancy name) costs $40. Coolthenate's gun, even if you were to reproduce in the thousands would still easily go over $150 at cost. Add in profit plus retailers padding, that's $250 easy. Have these made in China and you'll get cost down to $20, but the same factory will rip you off and sell copies on their own for $10.

 

<AT>Coolthenate

It's pretty obvious that the people around here know more about the hobby than you do so you're not exactly putting on a good show with you being defensive. You asked for pointers and people are giving them by the handful.

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I didn't watch video. I skimme through most responses. Science Fair at School? Make sure if you are going to have models present that you get clear permission from the school Principle. Also make certain Airsoft or "Replicas" do not fall under "Firearms" in your State. I don't want to see you get in trouble for nothing at all. Good luck with your presentation..

 

 

And whenever you post stuff like this, always be prepared to have your work picked apart for accuracy and legitimacy. It is a forum thing (Not just this one), people take pride in their hobbies and want to see it represented with facts.

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